Characterization of Asian Tropospheric Aerosols with Multi-wavelength Mie-Raman Lidar and Skyradiometer

Material type: 文書・図像類

Author: MURAYAMA, Toshiyukiほか

Publisher: Chiba University. Center for Environmental Remote Sensing

Publication date: 2005-02-17

Material Format: Digital

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Note (General)：: type:text[ABSTRACT] We have extensively observed tropospheric aerosols with lidar and Sun/sky radiometer in Tokyo. Recently, we have extended the lida...

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Material Type: 文書・図像類
Title: Characterization of Asian Tropospheric Aerosols with Multi-wavelength Mie-Raman Lidar and Skyradiometer
Author/Editor: MURAYAMA, Toshiyuki
SEKIGUCHI, Miho
MÜLLER, Detlef
WADA, Katsuya
SAITO, Yasuharu
Author Heading: MURAYAMA, Toshiyuki
SEKIGUCHI, Miho
MÜLLER, Detlef
WADA, Katsuya
SAITO, Yasuharu
Publication, Distribution, etc.: Chiba University. Center for Environmental Remote Sensing
Publication Date: 2005-02-17
Publication Date (W3CDTF): 2005-02-17
Periodical title: Proceedings of the CEReS international symposium = CEReS国際シンポジウム資料集
No. or year of volume/issue: 10
Volume: 10
Pages: 73-82
Text Language Code: eng
Target Audience: 一般
Note (General): type:text
[ABSTRACT] We have extensively observed tropospheric aerosols with lidar and Sun/sky radiometer in Tokyo. Recently, we have extended the lidar system to dual-wavelength Raman lidar (The primary laser wavelengths are 355 and 532 nm.). We found that the intensive optical properties such as Angstrom exponent and lidar ratios derived from the Raman lidar measurements are quite useful to characterize the aerosols resolving with height. As highlighted examples, we will show the case studies of Asian dust and Siberian smoke. For the smoke case (as spherical aerosol case), we retrieved the microphysical properties by applying an inversion with regularization. The results show an accumulation-mode dominate size-distribution and a low absorption; the effective radius and the single scattering albedo are ～0.22μm and ～0.95, respectively. The column-averaged microphysical properties derived from the skyradiometer are also consistent with the results. We also estimated the aerosol direct radiative forcing using the microphysical properties. Further systematic analyses and improvement of lidar system are now in progress.
Access Restrictions: 限定公開
Related Material (NCID): BA71319447
https://ci.nii.ac.jp/ncid/BA71319447
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 千葉大学 : 千葉大学学術成果リポジトリ